玉米自交系对轮枝镰孢菌穗腐病的抗性评价

【目的】在我国西南玉米产区,轮枝镰孢菌穗腐病是一种常发性病害,对其最为经济有效的防治方法是选育抗性品种。【方法】本研究对114份引进的国外自交系,采用田间人工接种的方式,进行穗腐病抗性评价。【结果】表现为高抗的自交系仅1份,占0.9%,为CML490;抗性材料（R）23份,占20.2%;中抗材料（MR）49份,占43.0%;感病材料（S）28份,占24.6%;高感材料（HS）13份,占11.4%。【结论】供试材料中,中抗以上的种质资源占68.5%,说明国外引进的玉米自交系材料中存在丰富的抗源,可加大引进力度和筛选量,以筛选到优质的抗源。...

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Published in西南农业学报 Vol. 30; no. 6; pp. 1346 - 1349
Main Author 邹成佳 崔丽娜 章振羽 张小飞 李荣进 陈耕 李晓
Format Journal Article
LanguageChinese
Published 四川省农业科学院植保所,农业部西南作物有害生物综合治理重点实验室,四川成都610066%西昌市良种场,四川西昌,615000%西昌市植保植检站,四川西昌,615000 2017
Subjects
抗性评价
玉米
玉米穗腐病
轮枝镰孢菌
Fusarium verticillioide
Evaluation of resistance
玉米
玉米穗腐病
Ear rot
抗性评价
Maize
轮枝镰孢菌
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ISSN1001-4829
DOI10.16213/j.cnki.scjas.2017.6.019

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Summary:【目的】在我国西南玉米产区,轮枝镰孢菌穗腐病是一种常发性病害,对其最为经济有效的防治方法是选育抗性品种。【方法】本研究对114份引进的国外自交系,采用田间人工接种的方式,进行穗腐病抗性评价。【结果】表现为高抗的自交系仅1份,占0.9%,为CML490;抗性材料（R）23份,占20.2%;中抗材料（MR）49份,占43.0%;感病材料（S）28份,占24.6%;高感材料（HS）13份,占11.4%。【结论】供试材料中,中抗以上的种质资源占68.5%,说明国外引进的玉米自交系材料中存在丰富的抗源,可加大引进力度和筛选量,以筛选到优质的抗源。
Bibliography:[ Objective ] Fusarium ear rot is a common occurrence in the southwest of China, and host resistance is the most commercial strategyto control the disease. [ Method ] In this study, the total of 114 maize inbred lines of Chengdu in field trial were evaluated for ear rot causedby Fusarium verticillioides. [ Result] Only one maize inbred line, namely CMIAgO, presented high-resistance to Fusarium ear rot, accountingfor 0.9 % , and 23 and 49 maize inbred lines were resistant and moderately-resistant to ear rot accounting for 20.2 % and 43.0 % , respec-tively. The other 41 maize inbred lines were susceptible or high-susceptible to Fusarium ear rot, accounting for 36.0 %. [ Conclusion ] 68.5 % evaluated maize inbred lines had resistance to ear rot （moderately-resistance, resistance and high-resistance）, which would introduceand evaluate more maize inbred lines to select the high-resistant lines.
51-1213/S
ZOU Cheng-jia , CUI Li-na , ZHANG Zhen-yu , ZHANG Xiao-fei1 , LI Rong-jin2, CHEN Geng3 , LI Xiao1 ＊ （ 1. Institut
ISSN:1001-4829
DOI:10.16213/j.cnki.scjas.2017.6.019